METHOD AND APPARATUS FOR RECORDING DATA ON WRITE-ONCE DISK, METHOD AND APPARATUS FOR REPRODUCING DATA, AND WRITE-ONCE DISK THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for recording data capable of further reducing access time for reading updated information required for using a write-once disk. SOLUTION: The write-once disk includes: a plurality of update areas in which a predetermined kind of updated information is recorded; at least one main access information area in which main access information is recorded, the main access information indicating a final update area in which finally updated information is recorded among the plurality of update areas; and at least one sub access information area in which sub access information is recorded, the sub access information indicating a location of the finally updated information recorded in the final update area. Accordingly, the access time for reading a predetermined kind of information required to use the write-once disk is further reduced. COPYRIGHT: (C)2008,JPO&INPIT